﻿<form>
  <input type="button" value="ごみ箱を空にする" onclick="update_contents_by_form('main',this.form);">
  <input type="hidden" name="mode" value="delete">
  <input type="hidden" name="id" value="0">
  <input type="hidden" name="category_id" value="_%category_id%_">
</form>
